Well after many months of researching and replacing parts I fixed my Dreaded Limp mode problem.
It was Sticking /frozen vanes and a broken primary vane actuator arm inside turbo
I guess with vanes stuck in max boost position it was easy to overboost and did not throw a code stating exactly what was causing it so it was harder to track down.

-Was getting air in fuel so I replaced fuel head and added fuel pump in tank -still had Limp mode
- replaced MAF -still had Limp mode
-full egr delete-still had Limp mode
-replaced vacuum actuator -still had Limp mode
-replaced all turbo hoses and hose going to turbo from air box-still had limp mode
-disconnected vacuum port on turbo,arm moved fine-still had a limp mode
Pulled turbo and found that arm was broken acyvating vanes ,so actuator would move but all vanes were seized up and could not be broken free ,instead of replacing vanes on my turbo initially I bought a new Sasquatch Turbo and have not had a limp mode since. Just adding this so it can be found in a search for Limp mode issue since I never seemed to find this info when I was looking for it . Good luck folks and hopefully someone will find this info useful since I still see folks asking about it and the same info is being given out .

Thank you, Dzldust!

Your experience should prove to be quite valuable to other Liberty CRD owners.

With all that you have upgraded, you should have a reliable ride for quite a long time.

WOW!
I believe you are the first to report this particular failure and discovery?
Thanks for sharing, this information may be very helpful to some poor soul in the future chasing the same gremlins.

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve

Which turbo did you get OEM or the other one from Sasquatch?

Glad you got your rig working, what a goat rope!

_________________
Purchased 2006 LIberty CRD 82K 01/16
SS Cat Back Exhaust, Full EGR Delete,Provent, Michelin 245/70 R16 AT/2
Stock Tune, Serpentine Belt Service,160 Amp Alternator
10/17 96K, New Head, Injectors, ARP Studs, HDS T-Stat
04/18 99K, New Reman Trans
09/18 104K, Lift Pump
01/19 106K, OME Lift, Eaton TruTrac LSD in new rebuilt diff

This is first I have heard of this problem also.
At least almost all you did you received some value from and some spare good parts and now its fixed.
Great Job tracking it down.

_________________
05 Blu LIM, OME GDE Tbo, wk II 245/75/17, KC Lights, bull bar, 195K H TC
05 Blu Lim, Dayton, GDE HT, 255/75/18 , 210K , H TC
06 Bla Lim, GDE Eco, Destination AT 245/75/17, 151K, H TC
06 D Khaki Lim 126K wkII Eur TC
05 D khaki Lim 145k refurbishing
All CRDS: Fumoto, Lift , Fan Shroud mod, fuel head Gen II, SAMCOS,self TB, 2 Mic filt, Hayden

What turbo did you have that failed? OEM Garrett, or something else?

_________________
'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

OE Garrett Turbo made great boost,but vanes were stuck in max boost position,froze up,replaced them and it’s like new